Alamo HYDRO 15 - Manual (Page 97)

Section 5 - 23
HYDRO 15 (Service Manual) 10/06
© 2006 Alamo Industrial
OPTIONAL AXLE LEVEL LIFT CYLINDER REPAIR
AXLE
LEVEL LIFT
CYLINDERS, OPTIONAL
SERVICE & REPAIR
IMPORTANT NOTE:
SEE HYDRAULIC SCMATIC AT THE BEGINNING OF THIS SECTION !
This system will use a cylinder on the center axle and a cylinder on each wing
axle. These cylinder are connected in series and must be connected in a special
way to function properly, See hydraulic schematic for the hose connectors and cyl-
inder mounting sequence for this type of application.
These are rephasing cylinders and each cylinder is different bore size. (15
foot model) = Center cylinder is 3-1/2” bore, Right wing is 3-1/4” bore and Left wing
is 3” bore. (10 foot model) = center cylinder and right wing cylinder only Cylinder
must be installed in this order and hydraulic lines must be connected in this order,
see hydraulic schematics on previous pages.
Cylinder barrels must be installed in the same direction as removed when re-
assembled. The machined groove (pressure bypass groove) on the ID of the barrel
must always be installed with machined grove on the rod end of cylinder.
Hydraulic lines must be connect to largest bore cylinder, then medium sized
then small cylinder.
Return line from smallest cylinder to hydraulic oil supply works best if the
return line is connected to the (optional) auxiliary remote control valve pressure
return line. If tractor remote is used for cylinder supply/ control, the return line
should be connected direct to the oil reservoir and below the oil level to prevent air
from enter the re-phasing cylinder on the return side.